Seems to work, syncs blocks, doesn't show active peers, how long does it work without having to restart it?
Sometimes when the Pi is fully loaded, it shows active peers some moments later than normal. But it shows them eventually.
The uptime vs error ratio is actually quite high, to my own surprise. I've never seen the server completely die on the Pi. The worst yet was one instance of stuck blocks. Otherwise, the conservative settings seem to mitigate most problems.
Also, RAM usage is sufficiently low. Leakage over time is low, too, likely due to aggressive Embedded JRE grabage collection.
Hm, that gave me an idea, I am now testing openjdk-7-jre-headless package on a 512 mb vps, let's see how long it stays alive even though it's not 0.4.8 yet, where the memory issues are scheduled to be addressed.